The effect of vitamin B12 on physical performance capacity.

1. Physical performance capacity was assessed before and after injection of cyanocobalamin and a placebo for thirty-one Burmese male subjects whose age ranged from 18.7 to 20.8 years. 2. The subjects chosen were free from anaemia and were paired on a "weight--age" basis and divided into two groups. 3. One group received an injection of 1 mg cyanocobalamin and the other was given a placebo injection three times weekly for 6 weeks. This was done on a "double-blind" basis. 4. There was no significant difference between the two groups in any of the criteria measured, before and after administration of either 1 mg cyanocobalamin or placebo injection. So also there was no significant increase in any of the measurements in the subjects after receiving cyanocobalamin injections compared with thosse receiving the placebo.

RCT Entities:   Population Interventions Outcomes